Track remove automatic by Soundcloud

Greetings, I am new on using Soundcloud I was using a DJ Remix app that allow me to remix some music as a DJ Set Remix but i guess it got downloaded to my Soundcloud account then I got an email from Soundcloud Copyright Team that the DJ Remix was remove for Copyrights reason. My question is do I have to contact this department to notify them that the remix was downloaded by mistake?

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